Press Release

Cal Water Vice President, CFO & Treasurer to Speak at NYSSA Water Conference

SAN JOSE, CA--(Marketwire - Nov 30, 2011) - (NYSE: CWT) -- Martin A. Kropelnicki, Vice President, Chief Financial Officer & Treasurer of California Water Service Group (Cal Water), will give a presentation about the company at the New York Society of Security Analysts (NYSSA) Water Utilities Industry Investor Conference on Dec. 1, 2011, at 10:15 a.m. Eastern time at the NYSSA Conference Center in New York City.

Kropelnicki will provide an overview of the water industry, discuss current regulatory issues in California, and present information about California Water Service Group, its financial performance, and its strategy for future success.

The presentation will be available as part of the archived webcast available at following the conference. The presentation can also be viewed from the Calendar of Events page on Cal Water's web site at

California Water Service Group is the parent company of California Water Service Company, Washington Water Service Company, New Mexico Water Service Company, Hawaii Water Service Company, Inc., CWS Utility Services, and HWS Utility Services. The subsidiaries provide regulated and non-regulated water service to nearly 2 million people in 100 communities. The Company's common stock trades on the New York Stock Exchange under the symbol "CWT." Additional information about the company is available online at

1720 North First Street
San Jose, CA 95112-4598

Shannon Dean
(310) 257-1435

Marty Kropelnicki
(408) 367-8200